Asshjnob



W. H. ROBERTSON CASH REGISTER Filed Sept. 18, 1924 zas Aug. 23, 1932.

FIG-.2

Aug. 23, 1932. H, ROBERTSON 1,873,723

CASH REGISTER Filed Sept. 18, 1924 7 Sheets-Sheet 2 FIG. 1B

Hi! atto.: nu ga,

Aug. 23, 1932. w. H. ROBERTSON 1,873,723

CASH REGISTER v Filed .sept 1e, 1924 7 Sheets-sheet 3 INI FIG. 8

JOHN DOE GFOCERIES AND MEAT'S 740 MAIN STREET' 31a/vento@ William H. Robinson l Aug. 23,l 1932. w. H, ROBERTSON CASH REGISTER Filed Sept. 18I 1924 7 Sheets-Sheet 4 l {g1/035m foi i William H. Robertson Hi! @Het n e110 Aug. 23, 1932. w. H. ROBERTSON 1,873,723

cAsH REGISTER Filed Sept. 18, 1924 7 Sheets-Sheet 5 FIG.. 13

:JM/ventole AU@ 23 1932- w. H. ROBERTSON 1,873,723

CASH REGISTER Filed sept. 18l 1924 7 Sheets-sheet 6 gnveno William H. Robertson Hi. @Noz new,

' Aug. 23, 1932. w. H. RoBER'krsoN CASH REGISTER Filed Sept. 18I 1924 7 Sheets-Sheet 7 am: um ma Il. 1

NN .UE

Syvum/toc William H. Robertson 'Patented Aug. 23, 1932y UNITED STATES PATENT OFFICE WILLIAM H. ROBERTSON, OF DAYTON, OHIO, ASSIGNOB, BY MESNE ASSIGNMENTS, TO THE NATIONAL CASH REGISTER COMPANY, OF DAYTON, OHIO, A CORPORATION OF IARYLAN D CASH i REGISTER Application led September 1B, 1924. SeriaLNo. 738,451.

This invention relates to improvements in cash registers and has more particular relation to the type of machine shown and described in Letters Patent of the United States s anted to Thomas Carney, No. 497 ,860, dated lay 23, 1893, and in the copending application of Edward J. Von Pein, Serial No. 293,141, filed April 28, 1919.

One of the objects of the invention is to lo provide a machine for printing a number of items, together with the total of the 1tems, on an insertable slip, and to provide a positlve means for setting the total printing type carners.

Another object of the invention is to provide mechanism for engaging the totallzer with the actuator segments of the totalizer registering frames and for unlocking the registering frames during total printing op- 20 erations.

Another object of the invention is to provide a mechanism for selecting one of a plurality of totalizers for printing totals and for resetting them to zero.

Another object of the invention is to pro. vide two sets of type wheels so arranged that substantially the same mechanism can be used for setting both sets during item or total printin operations, and so engraved that 30 they wi l be set complementary to each other.

With these and incidental ob'ects in view, the invention consists of certain novel features of construction and combinations of arts, the essential elements of which are set 35 orth in appended claims and a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form part of this specification.

Of said figures:

Figs. 1A and 1B taken together constitute a plan view'of the machine.

Fig. 2 is a detail view, partly in section, of -a part of the tube line for setting the higher order total printi-ngtype wheels.

Fig. 3 is a detail view, partly in section, of a part of the tube line for setting the item and total printing type wheels.

Fig. 4 is a detail view of a transfer cam shown in cross section taken on line 4 4 of g. l1 is a cross section of the transaction totalizers.

Fig. 12 is a detail view, enlarged to show one of the totalizer wheels.

Fig. 13 is a detail view of a mechanism for partially rotating the cam sha/ft and for unlocking the registering frames during total printing operations.

Fig. 14 is a detail view, taken on line 14-14 of Fig. 15, showing part of the mechanism for partially rotating the cam shaft during tota printingo erations.

Fig. 15 is a ront elevation of the mechanism for partially rotating the cam shaft during total printing operations.

Fig. 16 is a detail end elevation of the mechanism shown in Fig. 15.

Fig. 17 is a detail view of the mechanism for giving the cam shaft a complete rotation during item entering operations.

Fig. 18 is a detail view showing the spring-pressed plunger for engaging the transaction totalizer.

Fig. 19 is a sectional view of the printer taken on line 19-19 of Fig. 1B.

Fig. 20 is a detail top plan view of the mechanism for alining both sets of type vzero at the end of each transaction. totalizer will be hereinafter referred to as wheels during item entering and total printingT operations.

ig. 21 is a detail View of the mechanism for restoring the type wheels after printing.

Fig. 22 is an isometric view of the mechapism under control of the totalizer selecting ever.

Fig. 23 is an enlarged detail view showing the means for shifting the totalizer selecting clutch. Y "y Fig. 24 is an enlarged detail view showing the means for shifting the mechanism for selecting a totalizer engaging arm and is taken on line 24-24 of Fig. 6, lookingr in the direction of the arrows.

Fig. 25 is a detail view of the type wheel aligner and its operating cam.

ig. 26 is a detail view showing the sprin pressed plunger for engaging the gran totalizer.

Fig. 27 is a right hand elevation of the grand totalizer. g

In general the machine includes three groups o f keys and two totalizers. The right hand totalizer is used for accumulating the totals of transactions, and is selthto the transaction totalizer. The left hand totalizer is used for accumulating the totals of a number of transactions, and will be hereinafter referred to as the grand total- 1zer.

The-present machine is shown ada ted forl printing on an insertable slip. owever, the usual issuing recelpt can be provided, 1f

desired. The depression of any oneof the keys unlocks and actuates one of the registering frames and adds the amount 1n the totalizers. This amount is set up on item printing wheels and printed on the slip. When all of the items of the transaction have been entered in the totalizers a crank is operated for setting up the amounts accumuiated in the transaction totalizer, on a set oi total printing wheels, by the ordinary totalizer registering frames. A special means for engaging this totalizer with the actuators during total printing operations, and also to unlock the totalizer registering frames, is provided. The totalizer wheels are turned to zero by the usual and well known mechanism shown and described in the above mentioned Von Pein application.l In turn-'to-zero mechanism of this type the wheels are turned in the same direction .hen being reset, as when receiving items, a distance` equal to the complement of the amount therein. After the total printing wheels have been set aspecial hammer is operated to make an impression on the inserted slip.

A selecting lever is provided to throw out the transaction totalizer and to throw in the "Alink47is grand totalizer for printing the totals of a number of transactions.

The present machine is) capable of performing item entering operations, total printing operations, and grand total rinting operations. The mechanism will e described for the various operations in the order named.

Item entering operations The machine is provided with three grou s off'keys 30 (Figs. 1A, 1B and 6).having t e usual actuator controllers 31 with notches 32 adapted to enga-ge a rod carried by a registering frame 33one for each group of keys, each of them having secured thereto an actuator segment 34. Each actuator segment 34 is always 1n mesh with a pinion 35 (Figs. 3 and 6) secured t0 one end of a sleeve 36, the other end of said sleeve having secured thereto a pinion 95 to which is secured one of the type Wheels 38 (Fig. 19). The notches 32 in the actuator controllers 31 are so located that the registering frame will be rocked a distance commensurate with the key depressed.

Type 'wheel setting meam When the registering frame is rocked by the depression of an amount ke 30, the movement given to the registering rame is transmitted to the type wheel 38 (Fig. 19), by the actuator segment 34, pinion 35 meshing therewith, and the sleeve 36 to which the type Wheel is secured. Thus depression of an amount key sets up an amount on the type wheel 38 commensurate key depressed.

Registering frame lock The registering frames are locked in their normal positions so as to prevent accidental movement when the actuator controllers are disengagedtherefrom. There is a 'rod 40 loosely mounted in each registering frame (Figs. 6 and 22) and each of said rods has secured thereto two arms 41. One of the arms 41 has an extension 42 contacting a shoulder on a back frame 43 carried by the side frames 44 to prevent movement of the registering frame. Each of the actuator controllers 31 has a rearwardly projecting cam edge 45 which lengages the bottom of the back frame 43 during the upward movement of the controllers 31, thus camming the controllers towards the front of the machine to contact a rod 46 carried by the abovementioned arms 41. rIhis forward movement of the actuator controllers 31 moves the extensions 42 out of contact with the frame 43 to permit diiferential movement of the registering frame 33 when the shoulder 32 strikes the rod 40.

provided to unlock the registering frame 33 during total printing operations. The method of operating this link will with the value of the be described when considerin the total printing operation. The forwar end o f they link is provided with a slot 48 surroundin a stud on an arm 165. This slot permits orward movement of the link during item entering operations without affecting the arm 165.

Transaction totalizer engaging mechanism The mechanism, as shown in the present application, is so constructed that both totalizers will be engaged with the registering frames upon depression of the keys. The engaging mechanism for the transaction totalizer will now be described. A key coupler 50 (Fig. 17) pivoted in the side frames 44 carries a roller 51 adapted to operate the well `known double-faced rack 52, (to be later described in detail), which gives the cam shaft 53 a complete rotation when any of the keys 30 are operated. Secured to the shaft 53 (Fig. 6) 1s a cam 54 adapted to engage two rollers carried on a totalizer engaglng lever 55 pivoted on a totalizer frame 56 and adapted to engage a spring-pressed plunger 57, also mounted in the transaction totalizer frame 56. The transaction totalizer frame 56 is pivoted at 58. When its cam shaft 53 is rotated, the lever 55 engages the plunger 57 and rocks the transaction totalizer frame 56, thereby meshing the pinions 59 with the actuator segments 34 of the registering frames. The pinions 59 are securedv to totalizer wheels 60. From this it can be seen that when anyl of the keys 30 are depressed the registering frames are actuated toenter an amount in the transaction totalizer commensurate with the amount f the keys depressed.

As above mentioned the cam shaft 53 is rotated by the double-faced rack 52 (Fig. 17) which rotation is effected in the following manner. When an amount key is depressed, and the key coupler 50, through the roller 51. elevates the rack 52` the pinion 151, loosely mounted on the shaft 53, is rotated counterclockwise. A disk 149 (Figs. 14 and 15) is sleeved to the pinion 151 and rotates therewith. The disk 149 has pivoted thereon a coupling pawl'148, which pawl has a pin 147 projecting through a slot 146 in a disk 145,

lpinned on the shaft 53. A spring 144 wound around the shaft 53, holds the pawl 148 and stud 147 in the position shown in Fig. 16. A stud 143 limits the movement of the pawl 148 under the action of the spring 144.

When the rack 52 is elevated to turn the` inion 151, a one-half rotation, the disk 149 1s rotated therewith, and the disk 145 and shaft 53 also rotate with the pinion 151 due to the coupling stud 147, which acts to couple the disk 149 to the disk 145. Just before the rack starts on its return, or downward, movement, the spring tension awl 142 (Fig. 17) in the usual and well known manner, shifts the rack 52 to the right, to mesh the left hand teeth of the double rack 52 with the pinion 151. Upon subsequent downwa innovement of the rack 52, the pinion 151, nd the disks 149 and 145, are given another onehalf rotation, thus completing the full rotation of the shaft 53.

During adding operations, the vdisks 149v and 145 are not necessary, as the pinions can be pinned directly on the shaft 53, as shown in the Von Pein application referred to. But, in the present machine it is necessary to slightly rotate the shaft 53 to move the totalizer pinions 59 into mesh with the actuator segments 34 during total taking o rations. Preferably this meshing of the totalizer is aocomplished during total taking operations, without elevating the rack 52 and key coupler 50, and for this. reason the disks 149 and 145 are provided, the disk 145 being given a movement without moving the disk 149. The manner in which this result is obtained is later4 described when considering the total taking operation of the machine.

Means is provided for locking the register-` ing frames for the transaction totalizer until the pinions 59 are engaged with the actuator segments 34. The segments 34 have downward projections (Fig. l6) cooperating with a cam 66 (Figs. 4, 5 and 6) mounted on the cam shaft 53. This cam is so timed that the projection 65 is engaged by the high part thereof until the pinions 59 engage the actuator segments 34, at which time the actuator segments are free to be actuated by the actuator controllers 31.

The actuator segment 34 for the units wheel in the transaction totalizer is secured to the totalizer registering frame 33, as above described. The segment for the tens wheel is loosely mounted on a shaft 70 (Figs. 1A, 1B and 6), carried by' the side frames 44, and meshes with a pinion 71 (Fig. 1-B) pinned to a shaft 72 carrying a pinion 73 (Fig. 1-A) meshing with a segment 34', similar to the actuator segment 34, secured to the totalizer registering frame 33 for the tens bank of keys. The registering frame for the dollars group is also loosely mounted on the shaft 70 and meshes with a pinion 74' (Fig. 1--B secured to a shaft 75, which has secured t ereto a pinion 76 (Fig. 1--A), meshing with a segment 34 secured to the totalizer registering frame 33 for the dollars bank of keys.

Grand totalizer engaging mechanism As before mentioned, the machine is provided with a grand totalizer, in addition to the above described transaction totalizer. The grand totalizer is of the same construction as the transaction totalizer above described, except that it has a larger capacity, it having seven totalizer pinions 59 (Fig. l-A) instead of live pinions 59 (Fig. l-B) as in the case of the transaction totalizer. Each and totalizer pinion 59 has a correspon ing totalizer wheel 60. The engagmiv iso,

ing mechanism for the,grand` totalizerA is exactly like that described for the transac` tion totalizer, and therefore, no further description thereof is believed necessary, the

i5 machine being rovided with duplicate means for engaging t e grand totalizer.

The item entering mechanism for the grand totalizer is actuated at the same time as the item entering mechanism for the 1o transaction totalizer, the two sets of mechi0 The dollar segment 34 of the grand totalv86', six cams (not s izer meshes with the above described pinion 76. It can therefore be seen that during item- -entering operations both totalizers will be rocked into engagement with the actuator segments 34 and 34 and both will be actuated simultaneously to receive an amount commensurate with the keys depressed.

Transfer mchanism The transfer, or carrying, mechanism is identical with that shown and described in the above mentioned Von Pein application, and therefore only a brief description will be given herein. The only difference in construction between the present transfer mechanism and the one shown in the above mentioned application is that the transfer cams 85 (Figs. 4, 5 and 6) are all integral with the cam 66. In transfer mechanism of the present type, heretofore disclosed, the transfer cams 85 and the locking cams 66 were separate. In the present machine the projections are formed on the actuator segments 34 and 34', which permits the transfer cams r 85 and the locking cam 66 to be made in a unit.

The cams 85 11) are adapted to engage well known carrying pawl supporting levers 86 for the transaction totalizer having loosely mounted thereon the usual carrying pawls 87 adapted to engage ratchets 88 secured to the totalizer wheels 60. A long tooth 89 is provided to trip a transfer trip pawl 90 when going from 9 to 0 to permit the carrying pawl 87 to engage the ratchet 88 of the next higher order wheel when the cam 85 operates the carrying pawl supporting lever 86. A duplicate set of cams (not shown, but like the cams 85) is provided to actuate the carrying pawl supporting levers 86 (Fig. lA) and carrying pawls 87 for the grand totalizer. However, since there are six carryin pawl supporting levers own) like the cams 85, are provided for the grand totalizer.

Type wheel aliner l After the type wheels 38 are positioned by the actuator segments 34 of the totalizer registering frames, as above described, they are alined b mechanism which will now be described. ach inion 95 (Fig. 19),meshes with a pinion 96 oosely mounted on a shaft 97 carried by rinter frames 98 and 99 (Fig. 1B). Secured to the end of the shaft 53 (Figs. 19, 20 and 25) is a cam 100 engaged by a roller on a downwardly projecting arm 101 of a lever 102. A spring 104 (Fig. 25), stretched between a stud 105 on a rearwardly projecting arm 106 of the lever 102 and a stud in the frame 98, holds the roller on the arm 101 against the cam 100. The lever 102 and lever 107 (Figs. 19 and 20) are connected by an aligning bar 103. When any of the keys 30 are depressed and the shaft 53 is rotated, the cam 100 rocks the bar 103 far enough to engage the inions 96. The cam 100 is so timed that t is engagement takes place just before the item printing platen makes an impression on the inserted sllp. It will be noticed that the lever 107 has connected thereto a pitman 109. This pitman is operated during total printing operations by a cam 110. The purpose of this mechanism will be described when considering the totalprinting o erations. It is sufficient to state here that t e cam 110 has a notch 111 to permit the bar 103, when operated by the cam 100, to engage the pinions 96.

I tem printing ham/mer The means for making an impression from the item type wheels 38 during item enterin operations will now be described. Secure to the shaft 53 (Fig. 10) is a cam 115 adapted to operate a spring-pressed hammer arm 116 which carries at its outer end a platen 117 (Fig. 19). The cam 115 is so timed that the platen 117 makes an impression on the inserted slip from the type wheels 38 after the type wheels 38 have been alined by the mechanism above described. This impression mechanism is all old and well known, and is shown and described in the above mentioned Von Pein application, and it is thought that this brief description is suicient.

Slip feeding mechanism The usual and well known means for spacing the printed items after each impression has been made is provided, and onl a brief description will be given herein. A eed roller 120 (Fig. 19) is engaged by a tension roller 121 mounted on a spring-tensioned arm 122. This construction permits the tension roller 121 to be disengaged from the feed roller 120 for insertin the slip. The feed roller 120 has secured t ereto a ratchet 128 engaged by a feed pawl 123, pivoted to an arm 124, fast on an arm 125 (Fig. 10), secured to a An endless ribbon 130 (Fig. 19) -is provided, which is fed by the usual well known mechanism, shown and described in the above mentioned Von Pein application. It forms no part of the present invention and it is therefore thought that a disclosure herein is unnecessary. The ribbon is fed between the type wheels and printing platens, to. make the impression on the inserted slip leglble.

Transaction total planting operations After the items have been entered in the totalizers the transaction totalizer is turned to zero, and the'total which was accumulated thereon is printed on the inserted slip. The turn-to-zero mechanism is utilized or setting up the total printing type wheels. Be-

fore turning the transaction totalizer to zero, it is engaged with the actuator segments 34. which segments are constantly 1n mesh with the above described pinions 35 for setting the item type Wheels 38. It will be remembered that the item type wheels 38 are secured to the pinions 95 which mesh= with pinions 96. The pinions 96 mesh with pinions 14() secured to the side of total-prlnting type wheels 141. From this it can be seen that after the totalizer is engaged with the actuating segments 34, and is turned to zero by mechanism to be hereinafter described, the movement of the totalizer is transmitted to the total-printing wheels 141 in the following manner. The item type wheels and the total type wheels are both set up on every operation. On item entering operations they are returned to zero so that at the beginning of the -total printing operations both sets always stand at zero. When the totalizer is reset to zero during total printing,.the totalizer wheels are rotated in the same direction as when adding until they rest at zero. This will, of course, set up on the item printing wheels the complement of the amount on the totalizer. As the total printingwheels are directly geared to the item Wheels they will be moved to the same extent and in the same direction but as the numerals on the total wheels are engraved in the reversel direction about the peripheries of these wheels, the amount which stood on the totalizer and not its complement will be set up and printed. By this arrangement the total printing wheels are set by a positive Totalz'zer engaging It will be remembered that during itementering operations the shaft 53 is given a complete rotation by the rack 52. However, during total-printing operations the rack52 is not operated. A mechanism is provided for giving the shaft 53 a slight counterclockwise movement for engaging thetotalizer pinions 59 with the actuator segments 34 during total-printing operations and this mechanism will now be described. Secured to the shaft 53 is the previously mentioned disk 145 (Figs. 13, 15 and 16) having the slot 146 cut therein, through which projects the pin 147 mounted on the awl 148 carried by the disk 149 (Figs. 14 andJ 15) loosely mounted on the shaft 53, and secured to the .pinion 151,'operated by the double-faced rack 52. The pin 147 also lprojects into a cam slot 154 of an arm 155 ig. 13) which is operated by a pair of cams 156 secured to a cam shaft 157. The cam shaft 157 is given a complete rotation in the direction shown by the arrow (Fig. 13) during each total-printing operation by the operatin crank 158 (Fig. 19), secured to a sleeve c utched to a pinion 159 meshing with a gear 160 secured to the shaft 157. During total-printing operations the pawl 148 is rocked counter-clockwise to cam the disk 145, together with the shaft 53, in a counter-clockwise direction.

The movement given the shaft 53 by the `arm 155 is suiiicient to rock the cam 54 far enough to engage the ansaction totalizer pinions 59 with the actuating segments 34 and to disengage the cam 66 from the projections 65 of the registering segments 34. At the end of the operation the shaft 53 is returned to home position by the arm 155.

This mechanism provides a convenient means for slightly rotating the shaft 53, without elevatmg the double rack 52, thus reducing the load on the operatinghandle 158 to a minimum. If it were not for the loose connection between the shaft 53 and pinion 151, and double rack 52, it would be necessary to not only lift the rack 52 but to also raise the ke coupler 50. The key coupler has no function during total printing operations and therefore, it is unnecessar to place this added load on the handle 158 uring such total taking operations,

Regsteng segment mechanm 42 of the arms 41 (Figs. 6 and 22) from the shoulderon the vback frame 43. The before v'mentioned link 47 is moved by a stud in an arm 165 secured to a shaft 166. There is a.

link v47 and an arm 165 for each registering y frame `engggaged from the frame 43 after the totalizer has been engaged with the actuator segments 34.

Turn-to-zero mechanism After the transaction totalizer has been engaged with the actuator segments,ras above described, the totalizer Wheels are turned to zero. This turn-to-zero mechanism will now be described. Secured to the shaft 157 (Fig. 10) is a cam 175 having a cam groove into which a roller on an arm 176 projects. The arm 176 is pivoted on a shaft 177 carried by the right side frame 44 of the printer frame 98. Thev arm 176 is connected to afsegment 178 by means of a link 179. The segment 178 meshes with a pinion 180 secured to a ratchet 181, pinned to a shaft 182. The ratchet 181 is engaged by a spring-pressed pawl 183 pivoted on a disk 184 secured to a gear 185 looselv mounted on the shaft 182. The gear 185' lmeshes with a pinion 186 pinned to a shaft 187 (Figs. 1B, 10 and 22). The shaft 187 is fiexibly connected to the totalizer shaft 188 by a universal coupling 189. The shaft 188 (Figs.

6,11 and 22) is carried in the totalizer frame 56 and supports the before described totalizer Wheels 60. A spring-pressed pawl 195 (Fig. 12) is mounted on each of the totalizer Wheels 60. The shaft 188 has a notch cut therein adapted to engage the pawls 195 as the shaft 1188 rotates. When the operating crank 158 is turned. the cam 175 rocks the segment 178, which, through the pinion 180 and ratchet 181, rotates the gear 185 and shaft 187. The shaft 188 is turned by means of the universal coupling 189. The amount of movement transmitted to the shaft 188 by the cam 175 is suiicient to give the shaft one complete rotation. During the rotation of the shaft 188 the notch therein engages the pawls 195 and Ythe totalizer Wheels are turned until they reach their zero positions. The amount of movement that each totalizer Wheel 60 receives depends upon the position to which it has been set by the actuator segments when .entering items. During totalfprinting operations the totalizer wheels 60 move the actuator segments 34 a distance equal to the movement they receive from the turn-to-zero shaft 188.

Zero stop mechanism Mechanism is provided to prevent the totalizer wheels 60 from overthrowing, or in other Words from passing the zero position if the machine should be operated too fast- Formed on each totalizer wheel is a projection 200 (Figs. 6, 11 and 12). )Vhen the totalizer Wheels are in the position shown in Fig. 6, they are setting at zero and the projections 200 are all in alinement. Two arms 201, connected by a bar 202, are loosely pivoted on a shaft 203. The bar 202 is adapted to be moved into the path of the projections 200 by a cam 207 (Fig. 7) before the totalizer Wheels reach their zero positions. One of the arms 201 is slotted to receive a stud 199 mounted on an arm 204 (Figs. 6 and 7) secured to a shaft 205.v The shaft 205 is carried by the side frames 44. Also secured to the shaft 205 is an arm 206 carrying a roller 210 adapted to project into the race of the cam 207 secured to the turn-to-zero shaft 182. It will be remembered that the turn-to-zero mechanism oscillates the shaft 182 during each total-printing operation of the machine. The link 179 (Fig. 10) of the turn-to-zero mechanism has a slot 208 which engages a stud in the before described segment 178. The stud on the segment 17 8 is held in engagement with the lower vWall of the slot 208 by a spring 209. After all of the projections engage the bar, the link 179 is given a slight additional movement. However, the shaft 187 will have been stopped by the bar 202. It can therefore be seen that the slight overthrow of the link 179 insures the totalizer wheels reaching their zero positions and the bar 202 prevents overthrow thereof.

Total type wheel aZz'm'n-g mechanism It will be remembered that the bar 103 (Fig. 19) of the arms 102 and 107 alines the type wheels 38 for printing the items. The bar 103 is also used for alining the total type Wheels 141 and an independent mechanism is furnished to operate it during total printing operations. Secured to the shaft 157, which receives a complete rotation during total printing operations, is the before described cam 110 into the cam race of which a .roller on the pitman 109 secured to the arm 107 projects. The race of the cam 110 is so timed that it moves the bar 103 into contact with the pinion 96 after the type Wheels 141 have beenset and ust before the total printing hammer makes the impression.

Total printing hammer a slot yin the platen supporting channel' .bar 219 to guide it in a vertical path. The

lenga-ge a positions.

cam race in the gear 160 is so timed that the impression will be made just after the type wheels have been alined, as above described.

Type wheel turn-to-zero mechanism Means is provided for returningr the total printing type wheels t0 zero after the impression has been made, and after the totalizer has been disengaged from the actuator segments 34. This mechanism will now be described. Meshing with the before described pinions 140 (Fig. 19) are pinions 225, each of which has a slot 226, through which projects a rod 227 carried by two arms 228 se- .cured to a shaft 229. Also secured to the shaft 229 is a pinion 230 (Fig. 2l) meshing with the segment 231 pivoted on the stud 177. The segment 231 carries two rollers adapted to double-plate cam 233 secured to the before described cam shaft 157. The cam 233 is formed to rock the two arms 228 first clockwise and then counter-clockwise, as shown in Fig. 21. The counter-clockwise movement of the arms 228 will take place after the totalizer has been disengaged from the actuator segments 34. The slots 226 are .so located in the pinions 225 that the clock- .wise movement of the rod 227 will carry the type wheels 141 back to their zero or home This movement. through the pinions 95 and 96, will return the actuator segments to their normal or home positions. `The counter-clockwise movement of the arm 227 will have no effect on the gears 225 because at this time the rod is free to move idly in the slots 226.

Higher order registering segments It will be noted that the machine as disclosed in thev present application has three groups of keys and that the transaction totalizer has five totalizer wheels and the grand totalizer has seven totalizer wheels. Since there is but one actuator segment 34 for each group of keys it is obvious that it is necessary to provide a` segment similar to the actuator segment 34 to set the total printing type wheels. The segment 34 for the tens of dollars type wheel, for each of the totalizers, is secured to the before mentioned shaft 70. The segment 34 for the hundreds of dollars totalizer wheel is loosely mounted on the shaft 7() and meshes with the pinion 240 (Fig. 2) secured to the sleeve 241 which also has secured thereto, adjacent to the transaction totalizer, a pinion 242 (Fig. 3). The sleeve 241 extends through to the right hand end of the machine and has secured thereto a pinion 95 identical with those secured to the item type wheels 38. This pinion 95 meshes with a pinion 96, which in turn .mulated therein.

meshes with a gear 140 secured to the hundreds of dollars ty wheel.

The thousands o dollars segment of the grand totalizer is loosel shaft and meshes witfi a pinion 243, secured to the sleeve 244 carrying the pinion 95 meshing with the pinion 96' adapted to rotate the hundreds of dollars type wheel 141 through the gear 140. The segment 34 for the highest denomination totalizer wheel engages a pinion similar to the pinion 243 pinned to the shaft 245 which shaft also carries a pinion 95 identical with those described for the lower order type wheels.

The pinions 95 associated with the higher order actuator segments 34 and 34' just described are provided with spring-pressed Grand total printing operation` A mechanism is provided to select the grand totalizer for printing the total accu- The machine is normally set so that during transaction total printing operations the transaction totalizer will be engaged with the actuator segments and the grand totalizer will be prevented from engaging therewith. The means for preventing the grand totalizer from engaging the actuator segments will b e first described.

Secured on a sleeve 248 is an arm 251 (Figs.

1A, 22, 24 and 27) which carries a stud 249 normally engaging ahole in an arm 252. The sleeve 248 has a slot through which promounted on thel jects a. stud 254 secured in the shaft 166. A. y

coil spring 258 is wound around the sleeve 248 between the vpin 254 and the arm 165 .secured to the sleeve. This spring holds the stud 249 in the arm 251 in engagement with the hole in the arm 252. The arm 252 is adapted to engage the before mentioned spring-pressed plunger 57 (Fig. 26) which is provided with a cam edge 255 and a .notch 256. The grand totalizer engaging lever 55 (Figs. 1A and 26), which lever is like the lever 55 (Fig. 6) for the transaction totalizer, is adapted to engage the plunger 57 to rockthe grand totalizer into engagement with the actuator segments when entering items. However. when totalizing from the transaction totalizer, the shaft 166 is rocked by the arm 167. as above described. This movement rocks the sleeve 248. which brings a` cam edge. 257 (Figs. 22 and 26) of n transaction totalizer.

When the arm 252 is rocked as just described a projection 285 (Figs. 22 and 27),

Grand totalizer selecting mechan/sm A mechanism is provided to select the grand totalizer to print the total from the grand totalizer and disable the transaction totalizer. This mechanism will now be described. Pivoted on a bracket 260 (Figs. 1A, 6, 9, 22 and 24) is a lever 261 having a forwardly extending arm 264 having a cam surface 265. The sleeve 248 has an arm 266 (Figs. 1B, 6 and 22) having a stud 267 adapted to engage a hole 268 (Fig. 6) in the arm 252 of the transaction totalizer. When the lever 261 is rocked counter-clockwise, the cam surface 265 engages a beveled edge 269 on the arm 251, and shifts said arm, sleeve 248 and arm 266 toward the right far enough to disengage the stud 249 in the arm 251 from the arm 252 for the grand totalizer, and to engage the stud 267 on the arm 266 (Fig. 1B) ,f with the hole 268 (Fig. 6) in the arm 252 for the transaction totalizer. When the crank 158 is operated with the lever 261 in the position just described, the arm 251 has no effeet on the arm 252 of the grand'totalizer, but the arm 266 rocks the arm 252 .for the The cam 257 of the arm 252 for the transaction totalizer engages the cam surface 255 (Fig. 18) on the springpressed plunger 57 for this totalizer, thereby shifting the notch 256 into alinement with the totalizer-engaging arm for the transaction totalizen It can be seen that the grand totalizer then engages with the actuators, because its engaging lever 55 engages its plunger 57 and rocks it into engagement with the segments.

The turn-to-zero mechanism is normally disengaged from the grand totalizer. However, when the lever 261 is rocked as above described, for selecting the grand totalizer, a cam surface 263 on the arm' 262 engages a beveled edge 287 of a clutch member 270 (Figs. 1A, 22 and 23). 'This engages the clutch member 270 with a clutch member 271, which is operatively connected to the turnto-zero shaft 188 by a flexible or universal coupling 272. The clutch member 270 is secured to the turn-to-zero shaft 188 for the grand totalizer. From this it can be seen that when the machine is operated from the operating crank 158 the totalizer wheels for the grand totalizer will be turned to zero in identically the same manner as is done when clearing the totalizer wheels for the transaction totalizer, as above described.

The turning to zero of the totalizers is accomplished as an incident to printing the totals from the totalizer, and only one total can be printed during a single operation of total of the grand totalizer, the transaction totalizer wheels are standing at zero at the start of the grand totalizer turn-to-zero operation. During the grand totalizer turn-tozero operation, the transaction totalizer elements are iven a complete rotation, but this rotation ofg the transaction totalizer elements is an idle one since the elements are not in mesh with the actuator segments 34 of the transaction totalizer. For these reasons the transaction totalizer must always be turned to zero before the grand totalizer is turned to zero.

A mechanism is also provided to keep the clutch members 270 and 271 in positive engagement during the complete rotation of the turn-to-zero shaft. Secured to the turn-tozero shaft 188 is a disk 275 (Figs. 1A, 6 and 22) having a notch 276. Secured to the grand totalizer frame is a bracket 277 having a downwardly projecting fiange 288 so formed that it normally engages the notch 276 in the disk 275, thereby preventing the turn-to-zero shaft 188 for the grand totalizer from being turned` However, when the turn-to-zero shaft is shifted to the right to engage the clutch members, the flange 288 of the bracket 277 is disengaged from the notch 276 and is in alinement with the left side of the disk 275. After the turn-to-zero shaft 188 has started to turn it cannot shift to the left until it has made a complete rotation, at which time the notch 276 and flange are again in alinement. When the lever 261 is again moved to select the transaction totalizer, and the arm 262 is rocked out from between the clutch member 270 and the totalizer frame 56, a spring 289 will return the disk 275 towards the left, thereby disengaging the clutch members 270 and 271.

A bar 202 identical with the bar 202 provided fol` the transaction totalizer is provided for the grand totalizer, except that it is wide enough to take care of seven totalizer wheels instead of five, as is the case in the transaction totalizer. This bar is rocked by the shaft 205 in the arm 204 in the same manner as that described for the transaction totalizer.

An interlocking device is provided for the lever 261 so that the lever cannot be moved after the crank 158 has been started. The arm 264 of the lever 261 has a flange 280 `(Figs. 1A., 9 and 22) adapted to nevadas' rate with a flanged arm 281 secured to t e before described sleeve 248. -It will be remembered that at the beginning of any total vprinting operation the sleeve 248- is 'ven a counterclockwise movement which wi position the flange on the arm 281 in the path of the flan e 280 on the arm 264. If the lever 261 has een moved to select the grand totalizer, thev flange of the arm 281 will pass over the top of the flange 280, thereby preventing the lever 261 from being returned until after the total printing o eration is complete. When the totalizer se ecting lever 261 is in the normal position, as shown in Fig. 9, that is, before it is shifted to select the grand totalizer, and a total is taken of the transaction totalizer, the flange on the arm 281 rocks beneath the ange 280, thus preventing shifting of the selecting lever 261, during transaction total taking operations.

Operation A brief description of the operation will now be given. The operator will enter amounts in the transaction totalizer and the grand totalizerv simultaneously when depressing the amount keys 30. This will set the amount on the item printing type wheels and print on the inserted slip. Any number of items can be-entered in the totalizers before the total is printed. After all of the items of a given transaction have been entered the operator will turn the totalizer crank, which will engage the transaction totalizer with its actuator segments and turn the totalizer wheels to zero. This turn-tozero movement is transmitted to thetotal printing type wheels by means of the actuator segments and the associated type line. After the amounts have been set up in the type wheels the total printing hammer will print the total and the transaction will be completed.

When it is desired to print a grand tot-all of a number of transactions a total selecting lever is moved which will disable the totalizer engaging mechanism for the transaction totalizer and render lthe engaging mechanism forl the grand totalizer operative, whereupon the operator will turn the crank and the total will be printed from the grand totalizer in a manner identical with that just described for the transaction totallzer.

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form or embodiment herein disclosed, for4 it is susceptiment bein combination of accumulating elements, means for turning the accumulating elements to zero, actuators for entering items into the accumulating elements adapted to be moved by the accumulating elements when said elements are being turned to zero, said movement being in the same direction when being turned to zero as when entering items, and printing elements arranged in complemental relation with the accumulating elements and yactuated by the said actuators for printing totals;

2, In a machine of the class described, the combination of accumulating elements, means for turning the accumulating elements to zero, actuators for entering items into the accumulating elements adapted to be moved by the accumulating elements when said elements are being turned to zero, said movein the same direction when being turne to zero as when entering items, and printing elements arranged to be set by the item entering actuators to print amounts corresponding to the complement of the amount of movement 'ven the accumulating elements Vwhen said e ements are turned to 1ero.` l

3. The combination of a shaft, a notched member secured to said shaft, a pivoted device operatively connected tothe notched member, a member carrying saidpivoted device, means for rotating the second mentioned member for turning the shaft, and means for rocking the pivoted device for partially turning the shaft.

4. The combination of a shaft, a device secured to said shaft, a member rotatably mounted on said shaft, means for coupling said member to said device for giving the 1. In a machine of the class described, thev shaft a complete rotation, and means for 5. The combination of a totalizer, actuators therefor, a shaft, means on the shaft for engaging the totalizer with the actuators, a device secured to said shaft, a imember ada ted to be rotated on said shaft, means or coupling said member to said device for rotating the shaft, and a device for operating the cleupiling means for partially rotating the s a 6. In a machine ofthe class described, the combination of a plurality of totalizers, a. group of actuators for each totalizer, a means for engaging each totalizer with its actuators for printing totals, total printin mechanism, operating means for the total prlnting mechanism, means operable by said operating means for actuating the totalizer engaging means, and a member for controlling the effectivity of the totalizer engaging means.

7. In a machine of the class described, the

vlll

combination of a plurality of totalizers, actuators for each totalizer, a lever for each totalizer adapted to move the totalizer into engagement with its actuators, a sprin -pressed lunger mounted on each totalizer a apted to iie engaged by said levers, said plungers each 5 having a notch, total printing mechanism to take totals from said totalizers, operating means to operate the total printing mechanism, an arm for each totalizer` operated by said operating means, for shifting the plungers to position the notches into the paths of the levers whereby the levers become ineffective, and a device for determining the effectivity of said arms.

8. In a machine of the class described, the combination of a plurality of totalizers, actuators for each totalizer, a. lever for each totalizer adapted to move the totalizer into engagement with its actuators, a. spring-pressed plunger mounted on each totalizer, adapted to` be engaged by said levers, said plungers each having a notch, total print-ing mechanism to take totals from said totalizers, operating means for the total printin mechanism, an arm for each totalizer for shifting the plungers to position the notches into the path of the levers whereby the levers become ineffective, a rockable shaft loosely supporting said arms, a sleeve slidably mounted on said shaft and adapted to be rocked thereby, members 3 secured to the sleeve and adapted to engage the arms, a device for shifting the sleeve to determine which of said members is to engage said arms, and means operated by said operating means for rocking the shaft.

combination of a grand totalizer, a transaction totalizer, a turn-to-zero shaft for the transaction totalizer, a turn-to-zero shaft for the grand totalizer, means for locking the turn-to-zero shaft for the 'grand totalizer, total printing mechanism for printing totals on either totalizer, and a manipulative device for determining when a total is to be printed from the grand totalizer for clutching the two turn-to-zero shafts together for simultaneous operation, and for unlocking the turnto-zero shaft for the grand totalizer.

10. In a machine of the class described, the combination with a totalizer, actuators therefor, and means for engaging the totalizer with the actuators, of a rotatable shaft, engaging means on the shaft for engaging the totalizers with the actuators, means for rotating the engaging means and the shaft during item entering operations to engage the totalizer with the actuators, and means for oscillating the engaging means and the shaft during total taking operations to engage the totalizer with the actuators.

11. In a machine of the class described, the combination of accumulating devices, actuators therefor, item recording elements adjusted by said actuators, total recording ele- H ments, connections between the total record- 60 ing elements and said item recording ele- 9. In a machine of the class described, the

ments, and means for engaging the accumulating devices with the actuators during total recording operations to adjust the item recording elements and through said connections adjust the total recording elements.

12. In a machine of the class described; in combination with accumulating elements; actuators for entering items into the accumulating elements; printin velements for recording the items entere into the accumulating elements; and a printing platen to take impressions from the item printing ele-- ments; of total printing elements geared to the item printing elements; and total taking mechanism adapted to set'the total rinting 80 elements through the item printing e ements.

13. In a machine of the class described; in combination with accumulating elements; actuators for entering items into the accumulating elements; and item printing elements for recording the items entered into the ac- -cumulating elements; of total printing elements with numerals arranged complementary to the numerals on the itemprintin Wheels, said total printing elements being a justed through the item printing elements; and connections between the item printing elements and the actuators to simultaneously adjust beth sets of elements when entering items and when printing totals.

14. In a machine of the class described, in combination with a plurality of totalizers; a set of actuators for each totalizer; engaging means for each totalizer adapted to normally engage the totalizers with their respective actuators; and control means to determine the eifectivity of the engaging means; of slidable means adapted to be coupled to one of the control means; and mechanism to operate the slidable means to selectively operate one of the control lmeans to render the engaging means for one totalizer ineffective.

15. In a machine of the class described, in combination with a plurality of totalizers; a set of actuators Afor each totalizer; engaging 11 means for each totalizer adapted to normally engage the totalizers with their respective actuators; and control means to determine the eifectivity of the engaging means;

of slidable means adapted to be coupled to one of the control means; a manually operable lever to control the movement of the slidable means to determine the position of the slidable means; and mechanism to operate the slidable means to selectively operate 12 one of the control means to render the engaging means for one totalizer ineffective.

16. In a machine of the class described, in combination with a plurality of totalizers; a set of actuators for each totalizer; engaging means for each totalizer adapted to normally engage the totalizers with their respective actuators; and control means to determine the eifectivity of the engaging means; of slidable means adapted to be coupled to one of 13 the control means; a cam surface on the slidable means; a manually operable lever; a cam on the lever to engage the cam surface on the 'slidable means to control the position of the slidable means; and means to operate the slidable means to selectively operate one of the control means to render the engaging means for one totalizer ineffective.

17. In a machine of the class described, the combination of accumulating elements, total printin elements, item entering actuators inter ose between the accumulating elements an the total printing elements to set the total printing elements complementally by the accumulating elements when the accumulating elements are reset, and means to reset the accumulating elements by turning them in the same direction as when enterin items.

18. In a machine of the class descri d, the

combination of a totalizer, actuators therefor; item printin elements; total printing elements arrange in complemental relation with the item printing elements; and means always connected with the actuators to set up the items as they are entered, and to set up the totals standing on the totalizer when takin totals.

19. n a machine of the class described, the combination of accumulating devices; means for restoring the accumulating devices to zero; actuators for entering items into the accumulating devices, said actuators adapted to be moved by the accumulating devices, when the devices are being restored to zero, in the same direction as the actuators are turned when adding into the accumulating devices; item recording elements adjusted by said actuators; total recording elements arranged in complemental relation with the item recording` elements; connections between the total recording elements and the item recording elements; and means for engaging the accumulating devices with the actuators during total recording `operations to adjust the ite'm recording elements and through said connections adjust the total recording elements according to the complement of the restoring movement of the accumulating devices. l

In testimon whereof IV aix m si ature.

IAM H. ROB R N. 

